“老鼠”属啮齿类动物，性格胆小且行为诡秘，喜欢昼夜出现避见人烟. 擅长攀爬、游泳、跳跃。在城市的建筑物内，由鼠咬所引致的电线短路、电话失灵及计算机系统瘫痪时常发生。老鼠喜欢在温暖潮湿的地方哺育幼鼠，当中又以厨房的炉头附近最常见。因为地方温暖而且食物不断供应，尢其饮食场所更需注重老鼠防治。以防老鼠大量肆虐。老鼠的生殖能力奇高，每年可产下 5-8 胎。每胎 5-14 只幼鼠。

    老鼠身上可带有上千种病毒，对人类的危害是致命性的。从老鼠身上传至人体的病毒主要经四种途径： 1) 老鼠体外寄生虫，如蚤、裨和蚋； 2) 带有病源体的老鼠排泄物、污染食水和食物；3) 遭老鼠咬伤。

常见的经老鼠传播的疾病有

1- " 鼠疫 " ：是由鼠疫耶尔森杆菌所引致，途径由老鼠所咬而传染。
2- " 鼠斑疹伤寒 " ：是受一种被称为克次身体病毒所感染，经鼠虱传播，亦可由伤口或因不慎吸入鼠虱粪便，受鼠尿所染的食水或食物所引致。
3- " 南欧斑疹热 " ：是经由蜱传播的立克次氏体病菌。蜱的幼虫寄居于老鼠身上,成虫会寄居于狗畜身上。传播途径是经蜱吸人血而侵入人体。
4- " 丛林斑疹伤寒 " ：经由传播的立克次氏体病菌由居于郊外的老鼠身上的所传播。人类于露营和行山时最易受感染。
5- " 汉他病 " - 于空气不流通的地方，再经受感染的老鼠所出的微粒和排泄物所传播。
6- " 鼠咬热 "是藏于老鼠口腔内的细菌，经由鼠咬所传染。

　

Mice & Rat

Rodents are so called. Their activity are shyly and mainly at night. Rat likes to live near the gas cooker in kitchen because kitchen is warm and full of food. Especially the restaurant, they must pay more attention to control rat and mice. The only thing in common is that both rats and mice are very prolific animals. In a year they can produce 5 - 8 litters each with 5 - 14 young.

In the city building are slowly being gnawed through, electric cables short-circuited telephones disconnected and even computers are susceptible. Diseases carried by them are too many to list. Plague caused the bacterium Yersinia pestis is primarily a rodent disease but it is spread from rats to man by fleas and even now there are many rodent - borne fevers and viruses such as Boutonneuse, Epidemic typhus and Hantann Fever.